Textile fluid bulking process

Details Textile fluid bulking process Textile fluid bulking process

1975-07-28

1977-08-16

Rimrodt, Louis K.

Textiles: manufacturing

Thread finishing

Surface modification of running length

28265, 28271, D02G 120, D02G 116, D02G 112

Patent

active

040415864

ABSTRACT:
A bulked multifilament yarn having filaments of polymeric material has alternating points of maximum polymeric density and minimum polymeric density occurring along the length of each filament with a maximum spacing of 10 meters. The yarn may have a crimped structure in which the crimps are of undulating form with more than 50% of the filaments having maximum amplitudes of undulation less than the diameter of the yarn and more than 50% of each filament lies on one side of a diametral plane of the yarn particular to that filament. A process of producing the yarn includes the steps of jet bulking yarn and projecting it against one end of an elongated package during which the pressure prevailing at said one end of the package fluctuates. The pressure varies between a maximum value and a minimum value with a frequency related to the rate of feed of the yarn.

REFERENCES:
patent: 3256582 (1966-06-01), Burleson
patent: 3296677 (1967-01-01), Chase
patent: 3832759 (1974-09-01), Eskridge et al.
patent: 3879821 (1975-04-01), Stanley
patent: 3885278 (1975-05-01), Whitaker
patent: 3936916 (1976-02-01), Borenstein et al.
patent: 3961402 (1976-06-01), Ferrier et al.
patent: 3977058 (1976-08-01), Borenstein et al.
patent: 3977059 (1976-08-01), Allen et al.

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